Battery informationBattery informationCharging and dischargingYour device is powered by a rechargeable battery. The fullperformance of a new battery is achieved only after two orthree complete charge and discharge cycles. The battery canbe charged and discharged hundreds of times but it willeventually wear out. When the talk and standby times arenoticeably shorter than normal, replace the battery. Use onlyNokia approved batteries, and recharge your battery only withNokia approved chargers designated for this device.If a replacement battery is being used for the first time or ifthe battery has not been used for a prolonged period, it maybe necessary to connect the charger and then disconnect andreconnect it to begin charging the battery.Unplug the charger from the electrical plug and the deviceDo not short-circuit the battery. Accidental short-circuitingcan occur when a metallic object such as a coin, clip, or pencauses direct connection of the positive (+) and negative (-)terminals of the battery. (These look like metal strips on thebattery.) This might happen, for example, when you carry aspare battery in your pocket or purse. Short-circuiting theterminals may damage the battery or the connecting object.Leaving the battery in hot or cold places, such as in a closedcar in summer or winter conditions, will reduce the capacityand lifetime of the battery. Always try to keep the batterybetween 15°C and 25°C (59°F and 77°F). A device with a hotor cold battery may not work temporarily, even when thebattery is fully charged. Battery performance is particularlylimited in temperatures well below freezing.Do not dispose of batteries in a fire as they may explode.